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633-8156-20 — GROMMET,NONMETALLIC

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

633-8156-20: GROMMET,NONMETALLIC.

The GROMMET,NONMETALLIC is a the manufacturer industrial component. Key specifications include material: RUBBER OVERALL, groove_width: 0.312 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN, large_end_hole_diameter: 1.375 INCHES NOMINAL IN, small_end_hole_diameter: 0.750 INCHES NOMINAL IN, grommet_construction_type: SOLID, material_document_and_classification: MIL-R-6130 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5325-01-285-4065, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
633-8156-20
NSN: 5325-01-285-4065
FSC: 5325 — Fastening Devices
CAGE: 0EXU3 — AQUA-CHEM, INC. DBA AQUA-CHEM INC (USA)
SPECIFICATIONS
materialRUBBER OVERALL
groove_width0.312 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
large_end_hole_diameter1.375 INCHES NOMINAL IN
small_end_hole_diameter0.750 INCHES NOMINAL IN
grommet_construction_typeSOLID
material_document_and_classificationMIL-R-6130 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5325-01-285-4065
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 633-8156-20 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
SMALL END HOLE DIAMETER: 0.750 INCHES NOMINAL IN
•
LARGE END HOLE DIAMETER: 1.375 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-R-6130 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
GROMMET CONSTRUCTION TYPE: SOLID
•
MATERIAL: RUBBER OVERALL
•
GROOVE WIDTH: 0.312 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
SMALL END HOLE DIAMETER0.750 INCHES NOMINAL IN
LARGE END HOLE DIAMETER1.375 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-6130 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
GROMMET CONSTRUCTION TYPESOLID
MATERIALRUBBER OVERALL
GROOVE WIDTH0.312 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
OTHER ITEMS IN FSC 5325 — Fastening Devices
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5325-00-000-1884 5325-00-000-9988 5325-00-001-1567 5325-00-001-2043 5325-00-001-3842 5325-00-001-3858 5325-00-001-3871 5325-00-001-4317
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 633-8156-20?
633-8156-20 is a GROMMET,NONMETALLIC.
What is the NSN for 633-8156-20?
633-8156-20 is cataloged in the U.S. Government catalog under NSN 5325-01-285-4065. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.